Control Cable Assemblies, also known as Push Pull Cable Assemblies and Pull Assemblies, are used in numerous applications requiring the transmission of force. These assemblies are flexible enough to transmit forces in multiple directions through machinery. We have built push pull control cables for the aircraft, lawn and garden, exercise equipment, medical, office equipment and automotive industries. Please see our Push Pull Cable Design Guide for additional information or give us a call at 888-638-2604.
Control cables, manufactured by Tyler Madison, are a common part in everyday devices and are so reliable that we seldom notice them. They serve as a method for controlling and directing force in either one or two directions.
Applications for Custom Push Pull Cables:
The purpose of a push pull cable or pull assembly is to translate subtle physical forces over a distance. This can have a binary effect such as open/close or on/off or it can have a gradient like effect such as how much brake force is applied. For the wire rope control cable to function properly there are certain vital factors that need to be considered, including: length, load, radii, and the distance of wire travel. It is crucial to be accurate in these design factors in order for the efficient, and reliable function of a control assembly.
The load on a control cable is influenced by whether it is exclusively pull or push pull, where the design of a push assembly has to avoid buckling or distortion. In the case of push pull assemblies, the inner wire needs to be solid in construction to be able to have enough forward pushing force to actuate most systems.
Types of Control Cable Assemblies:
Push-Pull Assemblies are used when the transmission of force is required in both directions of the assembly travel. A choke on a lawn mower engine is a good example of this.
Pull Assemblies are used when the transmission of force is needed in only one direction. Think of the hood release on your car.
The design of a control assembly begins with its inner wire diameter. As the diameter of the inner wire increases, its ability to handle a heavier workload also increases.
At Tyler Madison, our highly trained engineers work closely with our customers to ensure the control cable you get is the one specifically designed for your application.
Inner Wire Options
When thinking about the inner wire to use in your push pull control, there are a number of options to consider:
- Cable Material: galvanized steel or stainless steel
- Cable Construction: typically these assemblies are made of 7 x 19 (most flexible), 7 x 7, or 1 x 19 (least flexible) cables
- Conduit: We typically use bowden conduit with an inner liner, therefore an uncoated inner wire is necessary as a polymer coating will cause excess friction.
- Length: there really isn’t a minimum or maximum length, just let us know your application
- Ends Fittings or Terminals: we have a large selection of end fittings, including balls, ball shanks, sleeves, stamped eyes, stops, thimbles, handles/knobs, strap forks, strap eyes, and threaded studs. Other options are available as well.
Pull cables can be carefully bent through machinery to connect systems together. The amount of bend has to be controlled to avoid friction in the assembly, which can be damaging to it. Push pull cables and pull assemblies from Tyler Madison are engineered to account for the degree of bend and the amount of friction that could potentially be created. Make sure you let us know how tight of a radius to plan to bend your cable around early in the process so we can select the right materials.
Much like electricity, the length of a control cable along which the force will travel diminishes as the cable gets longer. With increased length, the amount of friction increases, which has a direct effect on the power output.
Industries Using Push Pull Cables
Push pull controls are important components in many different industries. Automotive, aerospace, heavy equipment and more all use variations of push pull control assemblies to adjust and activate certain systems during operation. Quality cable assemblies make a big difference in the lifetime performance of these parts.
Maybe you’re looking for more than push pull controls. If so, you’ve come to the right place! At Tyler Madison, we also manufacture things like wire rope lanyards, wire rope assemblies, conduits, terminals and other related hardware. No matter that type of mechanical product that you are building or fixing, it’s likely that you can find all of the cable and wire rope you need at Tyler Madison. Our advanced machining techniques and skilled team even make us capable of manufacturing complex custom parts for you.
About Tyler Madison
Tyler Madison is a full-service, industry leading manufacturer of custom and stock wire ropes, cable assemblies and accessories. Our affordable products and advanced manufacturing abilities make us an excellent choice for all of your wire rope and cable needs. We offer design and engineering, and we can even create functional prototypes before starting production. Whether you need a customized solution or a product from our inventory, we’re ready to help you!